using Landmark.OLA.Models.Loan.Enums;

namespace Landmark.OLA.Models.Loan
{

    public static class LoanPurpose
    {
        //Acceptable values taken from CRIF database
        /*
        select p.shortname, p.name, p.productid, lp.name, lp.[description], 
        lp.loanpurposeid, lp.isactivefl  from v_RptProduct_v001 as p
        inner join v_RptProductLoanPurpose_v001 as plp
        on plp.productid = p.productid
        inner join v_RptLoanPurpose_v001 as lp
        on lp.loanpurposeid = plp.loanpurposeid
        order by p.productid
        */
        private static readonly List<Purpose> _ccPurposes = new List<Purpose>
            { Purpose.Other, Purpose.Consolidation, Purpose.Reestablish_Credit};

        private static readonly List<Purpose> _eqPurposes = new List<Purpose>
            { Purpose.Home_Improvement, Purpose.Home_Purchase, Purpose.Home_Refinance,
                Purpose.Other, Purpose.Cash_Out_Refinance };

        private static readonly List<Purpose> _mfgHomePurposes = new List<Purpose>
            { Purpose.Home_Improvement, Purpose.Purchase_Manufactured_Home, Purpose.Home_Refinance,
                Purpose.Other, Purpose.Cash_Out_Refinance };

        private static readonly List<Purpose> _vPurposes = new List<Purpose>
            { Purpose.Purchase, Purpose.Cash_Out_Refinance, Purpose.Refinance_Vehicle };

        private static readonly List<Purpose> _mPurposes = new List<Purpose>
            { Purpose.Purchase, Purpose.Refinance_Vehicle };

        private static readonly List<Purpose> _pPurposes = new List<Purpose>
            { Purpose.Purchase, Purpose.Refinance_Vehicle };

        private static readonly List<Purpose> _tPurposes = new List<Purpose>
            { Purpose.Purchase, Purpose.Refinance_Vehicle };

        private static readonly List<Purpose> _sPurposes = new List<Purpose>
            { Purpose.Other, Purpose.Consolidation};


        public static Dictionary<LoanType, List<Purpose>> TypePurposes => new Dictionary<LoanType, List<Purpose>>
        {
            { LoanType.CC_CashBack, _ccPurposes },
            { LoanType.CC_Rewards, _ccPurposes },
            { LoanType.CC_Student, _ccPurposes },
            { LoanType.CC_Secure, _ccPurposes },
            { LoanType.EQ_HELOC_Flex, _eqPurposes },
            { LoanType.EQ_Mtg_Refi_Express, _eqPurposes },
            { LoanType.EQ_Home_Equity_Fixed, _eqPurposes },
            { LoanType.EQ_Mfg_Home_With_or_Without_Land, _mfgHomePurposes },
            { LoanType.V_Vehicle, _vPurposes },
            { LoanType.V_VehiclePreapproval, _vPurposes },
            { LoanType.M_Boat, _mPurposes },
            { LoanType.P_Powersport, _pPurposes },
            { LoanType.T_TrailerMotorhome, _tPurposes },
            { LoanType.S_Signature, _sPurposes },
            { LoanType.S_Special, _sPurposes },
        };

        public static bool IsValidPurposeForType(LoanType? type, Purpose? purpose)
        {
            if (!type.HasValue)
                throw new ArgumentException("LoanType cannot be null");

            if (!purpose.HasValue)
                throw new ArgumentException("Purpose cannot be null");

            return IsValidPurposeForType(type.Value, purpose.Value);
        }

        public static bool IsValidPurposeForType(LoanType type, Purpose purpose)
        {
            return TypePurposes[type].Contains(purpose);
        }


        //Enum names and values based on CRIF's v_RptProductLoanPurpose_v001 table 
        //joined with v_RptProductLoanPurpose_v001
        //to find purposes that are active and in use
        /*
        select distinct lp.loanpurposeid, lp.name,lp.[description]
        from v_RptLoanPurpose_v001 as lp
        inner join v_RptProductLoanPurpose_v001 as plp
        on lp.loanpurposeid = plp.loanpurposeid
        where isactivefl = 1
        */
        public enum Purpose
        {
            Home_Improvement = 3,
            Home_Purchase = 4,
            Home_Refinance = 5,
            Purchase_Boat = 8,
            Purchase = 12,
            Other = 149,
            Refinance = 141,
            Dental_Expense = 142,
            Medical_Expense = 143,
            Cash_Out_Refinance = 144,
            Refinance_Vehicle = 146,
            Consolidation = 148,
            Reestablish_Credit = 150,
            Purchase_Manufactured_Home = 151,
        }
    }
}